Question

我正在尝试仅使用已加星标的联系人显示列表视图，并将图标和名称显示为自定义列表视图。到目前为止，我已经设法在没有Photo的情况下正确显示它们。当我试图包含照片时，我得到了几个错误（因为我尝试了很多不同的接近，这里找到了）。我的最后一次尝试是通过实现Android开发者“* 显示快速联系Badg * e”课程的代码，这里是相关代码：

Uri queryUri = ContactsContract.Contacts.CONTENT_URI;

    String[] projection = new String[] {
            ContactsContract.Contacts._ID,
            ContactsContract.Contacts.DISPLAY_NAME,
            ContactsContract.Contacts.STARRED,
            ContactsContract.Contacts.LOOKUP_KEY,
            ContactsContract.Contacts.PHOTO_THUMBNAIL_URI};
    String selection =ContactsContract.Contacts.STARRED + "='1'";

    Cursor cursor = managedQuery(queryUri, projection, selection,null,null);

    int mIdColumn;
    int mLookupKeyColumn;
    Uri mContactUri;

    mIdColumn = cursor.getColumnIndex(ContactsContract.Contacts._ID);
    // Gets the LOOKUP_KEY index
    mLookupKeyColumn = cursor.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY);

    mContactUri =
            ContactsContract.Contacts.getLookupUri(
                    cursor.getLong(mIdColumn),
                    cursor.getString(mLookupKeyColumn)
            );


    favIcon.assignContactUri(mContactUri);

    // The column in which to find the thumbnail ID
    int mThumbnailColumn;
/*
 * The thumbnail URI, expressed as a String.
 * Contacts Provider stores URIs as String values.
 */
    String mThumbnailUri;

/*
 * Gets the photo thumbnail column index if
 * platform version >= Honeycomb
 */
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
        mThumbnailColumn =
                cursor.getColumnIndex(ContactsContract.Contacts.PHOTO_THUMBNAIL_URI);
        // Otherwise, sets the thumbnail column to the _ID column
    } else {
        mThumbnailColumn = mIdColumn;
    }
/*
 * Assuming the current Cursor position is the contact you want,
 * gets the thumbnail ID
 */
    mThumbnailUri = cursor.getString(mThumbnailColumn);

    Bitmap mThumbnail =
            loadContactPhotoThumbnail(mThumbnailUri);
    favIcon.setImageBitmap(mThumbnail);

    String[] from = {ContactsContract.Contacts.DISPLAY_NAME};
    int to[] = new int[]{
            R.id.ivDefContact,
            R.id.tvContactName
    };

    ListAdapter adapter = new SimpleCursorAdapter(
            this,
            R.layout.favs_list_item,
            cursor,
            from,
            to,
            CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);


    final ListView listStarred = (ListView) findViewById(R.id.lvFavs);

    listStarred.setAdapter(adapter);

}

我使用上面代码得到的错误是：

Android.database.CursorIndexOutOfBoundsException：请求索引-1，大小为9 （9是我的已加星标的联系人的数量），并将我指向第85行，即：

mContactUri =
            ContactsContract.Contacts.getLookupUri(
                    cursor.getLong(mIdColumn),
                    cursor.getString(mLookupKeyColumn)
            );

如果我评论 R.id.ivDefContact，行，则列表视图的活动运行正常，并显示正确的联系人姓名。所以问题在于Photo实现。我读了一些相关的线程，但我不知道它是如何工作的。

编辑： Logcat错误：

java.lang.RuntimeException：无法启动活动ComponentInfo android.database.CursorIndexOutOfBoundsException：请求索引-1，大小为6 在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2307）在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2357）在android.app.ActivityThread.access $ 600（ActivityThread.java:153）在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1247）在android.os.Handler.dispatchMessage（Handler.java:99）在android.os.Looper.loop（Looper.java:137）在android.app.ActivityThread.main（ActivityThread.java:5226） at java.lang.reflect.Method.invokeNative（Native Method）在java.lang.reflect.Method.invoke（Method.java:511）在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:795）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:562） at dalvik.system.NativeStart.main（Native Method）引起：android.database.CursorIndexOutOfBoundsException：请求索引-1，大小为6 在android.database.AbstractCursor.checkPosition（AbstractCursor.java:424）在android.database.AbstractWindowedCursor.checkPosition（AbstractWindowedCursor.java:136）在android.database.AbstractWindowedCursor.getLong（AbstractWindowedCursor.java:74）在android.database.CursorWrapper.getLong（CursorWrapper.java:106）在com.example.DialerActivity.onCreate（DialerActivity.java:85）在android.app.Activity.performCreate（Activity.java:5104）在android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1080）在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2261） ......还有11个

Answer 1

问题在这里

String[] from = {ContactsContract.Contacts.DISPLAY_NAME};
    int to[] = new int[]{
            R.id.ivDefContact,
            R.id.tvContactName
    };

两者（来自和来自）的项目数必须相同。

因此，您可以将from重写为

String[] from = {ContactsContract.Contacts.PHOTO_THUMBNAIL_URI, ContactsContract.Contacts.DISPLAY_NAME};

Answer 2

我设法显示上述更改的照片：

Uri queryUri = ContactsContract.Contacts.CONTENT_URI;

    String[] projection = new String[] {
            ContactsContract.Contacts._ID,
            ContactsContract.Contacts.LOOKUP_KEY,
            ContactsContract.Contacts.PHOTO_THUMBNAIL_URI,
            ContactsContract.Contacts.DISPLAY_NAME,
            ContactsContract.Contacts.STARRED};

    String selection =ContactsContract.Contacts.STARRED + "='1'";

    Cursor cursor = managedQuery(queryUri, projection, selection,null,null);

    long id= cursor.getColumnIndex(ContactsContract.Contacts._ID);

    Bitmap bitmap = loadContactPhoto(getContentResolver(), id);
    if(bitmap!=null){
    favIcon.setImageBitmap(bitmap);
    }
    else{

    }

    String[] from = {ContactsContract.Contacts.PHOTO_THUMBNAIL_URI, ContactsContract.Contacts.DISPLAY_NAME};
    int to[] = new int[]{
            R.id.ivDefContact,
            R.id.tvContactName
    };

    ListAdapter adapter = new SimpleCursorAdapter(
            this,
            R.layout.favs_list_item,
            cursor,
            from,
            to,
            CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);


    final ListView listStarred = (ListView) findViewById(R.id.lvFavs);

    listStarred.setAdapter(adapter);

    public static Bitmap loadContactPhoto(ContentResolver cr, long  id) {
    Uri uri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, id);
    InputStream input = ContactsContract.Contacts.openContactPhotoInputStream(cr, uri);
    if (input == null) {

        return null;
    }
    return BitmapFactory.decodeStream(input);
}

现在照片显示的是带照片的联系人的照片。

在自定义ListView上显示带图片的已加星标的联系人

2 个答案: